ASA AMT General Oral Questions and Answers 2022 with complete solution

Document Content and Description Below

ASA AMT General Oral Questions and Answers 2022 with complete solution what is the basic unit of voltage -Answer- the volt what is the basic unit of current -Answer- the amp what is the basic... unit of resistance -Answer- The ohm. which law of electricity is the most important for an aircraft mechanic to know -Answer- Ohm's law what are the five sources of electrical energy -Answer- magnetism chemical energy light heat and pressure what are the three elements of Ohm's law -Answer- voltage current and resistance what four things affect resistance of an electrical conductor -Answer- the material the cross-sectional area the length and the temperature how can you tell the resistance of a composition resistor -Answer- By a series of colored bands around one end of the resistor. what three things must all electrical circuits contain -Answer- a source of electrical energy a load to use the energy and conductors to join the source and the load what is the purpose of a capacitor -Answer- To store electrical energy in electrostatic fields. what is the basic unit of capacitance -Answer- The farad. why should electrolytic capacitors not be use an AC circuit -Answer- they are polarized. an electrolytic capacitor will pass current of one polarity but will block the current of the opposite polarity what is meant by inductance -Answer- The ability to store electrical energy in electromagnetic fields. what is the basic unit of inductance -Answer- The Henry what is meant by impedance -Answer- The total opposition to the flow of alternating current. how can you find the polarity of electromagnet -Answer- hold the electromatic in your left hand with your fingers and circling the coil and the direction the electrons flow your thumb will point to the North End of the electromagnet in what units is impedance measured -Answer- In ohms what is the basic unit of electrical power in a DC circuit -Answer- The watt. what is meant by a kilowatt -Answer- 1,000 watts. what happens to the current in a DC circuit if the voltage is increased or the resistance Remains the Same -Answer- the current increases what are the three types of DC circuit's with regard to the placement of the various circuit components -Answer- series parallel and series parallel how many cells are there in a 24 volt lead-acid battery -Answer- 12 what is the specific gravity of the electrolyte in a fully charged lead acid battery -Answer- between 1.275 and 1.3 what is the range of temperatures of an electrolyte in a lead acid battery that does not require that you apply a correction when measuring its specific gravity -Answer- between 70 degrees and 90 degrees Fahrenheit what instrument is used to measure the specific gravity of the electrolyte in a lead acid battery -Answer- a hydrometer how is a lead acid battery compartment treated to protect it from corrosion -Answer- paint it with a tar base paint or polyurethane enamel what is used to neutralize spilled electrolyte from a led acid battery -Answer- a solution of bicarbonate of soda and water how high should the electrolyte level be in a properly serviced led acid battery -Answer- only up to the level of the indicator in the cell what precaution should be taken in maintenance shop for both let acid and nickel cadmium batteries are serviced -Answer- the two types of battery should be kept separate and the tools used on one type should not be used on the other why is a hydrometer not used to measure the state of charge of a nickel cadmium battery -Answer- the electrolyte of a nickel cadmium battery does not enter into the chemical changes that occur when the battery is charged or discharged its specific gravity does not change appreciably what is used to neutralize spilled electrolyte from A nickel cadmium battery -Answer- a solution of boric acid and water [Show More]

Last updated: 1 year ago

Preview 1 out of 17 pages